... Protocol: 802.11 b, 802.11 g, support for encryption: wep64, wep128, wpa, wpa2, Wireless Power: 13dbm3G modules (optional) HSPA/UMTS 850 ... Optional), USB, SD card, 1 RS232, 1 RS485 interfaceSDKSDK available for application development and system integrationOS RequirementMicrosoft Windows 2000/2003/XP ... *120(D) WeightNW:0.65kg GW:1.12kg better price for the wireless WIFI IP Video Server whith 1 CH Model ...